KR100815173B1 - Apparatus for connecting reinforcing bars mechanically using one-touch type locking device - Google Patents

Abstract

The present invention relates to a reinforcing bar joint device that can be easily locked by using a one-touch clip locking device to easily connect the reinforcement to improve the construction properties and at the same time to strengthen the bonding strength of the reinforcing bar.

In the present invention has an inner surface shape corresponding to the outer surface of the end of the two reinforcing bars (2) and the inner fixing means (10) wrapped in contact with the outer surface of the reinforcing bar (2) at each of the ends of the two bars (2); It is composed of a first split part 20a and a second split part 20b which are rotated to be opened and closed by the hinge part 21 formed at one side, and a one-touch clip locking device is provided on the opposite side of the hinge part 21. And a state in which both ends of the reinforcing bar 2 and each of the internal fixing means 10 are in close contact therewith in the longitudinal direction in the state where the first and second divisions 20a and 20b are closed. It includes an external pressure fixing means 20 is formed in the receiving space accommodated in; The external pressing fixing means 20 is the inner fixing means 10 by wrapping and pressing the inner fixing means 10 from the outside in a state in which both ends of the reinforcing bar 2 wrapped by the inner fixing means 10 are located in the storage space. ) Is provided with a mechanical reinforcing bar joint to secure the reinforcing bar (2) to achieve the joint of both reinforcing bars (2).

Rebar, Joint, Climb, Lock, Mechanical, One Touch

Description

Mechanical reinforcing bar joint using one-touch clip locking device {APPARATUS FOR CONNECTING REINFORCING BARS MECHANICALLY USING ONE-TOUCH TYPE LOCKING DEVICE}

Figure 1a is a perspective view illustrating a mechanical rebar joint according to an embodiment of the present invention.

FIG. 1B is a cross-sectional view taken along the line A-A of FIG. 1A.

Figure 2a is a perspective view illustrating the internal fixing means of the mechanical reinforcing bar according to the present invention.

Figure 2b is a cross-sectional view showing a shape in which the inner fixing means shown in Figure 2a in contact with the outer surface of the rebar.

3 is a cross-sectional view schematically showing the external pressure fixing means of the mechanical reinforcing bar according to the present invention.

4 is a schematic front view showing a shape in which the external pressing fixing means shown in FIG. 3 surrounds the inner fixing means.

Figure 5a is a schematic perspective view showing a one-touch clip locking device provided in the external pressing fixing means shown in FIG.

5B is a schematic cross-sectional view illustrating a state in which the external pressing fixing means is opened by being accommodated in the external pressing fixing means in the state where the internal fixing means is coupled to the outer surface of the reinforcing bar.

5C is a schematic cross-sectional view showing a state in which the external pressing fixing means is closed and locked by the clip locking device following the state shown in FIG. 5B.

<Explanation of symbols for the main parts of the drawings>

1: Rebar joint device 2: Rebar

10: internal fixing means 12: shear key

15: inside 20: external pressure fixing means

20a: first divider 20b: second divider

25: shear key insertion portion 31: ring

31a: ring rotating portion 32: the locking projection

33: rotating hole 35: fastener

The present invention relates to a mechanical reinforcing bar joint using a one-touch clip locking device, and more specifically, to be easily locked by using a one-touch clip locking device to easily connect the reinforcement to improve the workability and at the same time The present invention relates to a reinforcing bar joint device that can enhance the bond strength of the rod.

Since deformed bars (hereinafter abbreviated as "rebars") are manufactured to a limited length and are factory manufactured, they must be used in conjunction with each other when longer bars are required. As such, various methods have been sought to connect reinforcing bars.

As a conventional reinforcing bar connection method for connecting reinforcing bars, an overlapping joint method, a pressure point joint method, and the like have been proposed. Lap joint method is to reinforce and reinforce the reinforcing bar and reinforcing bar over the length of the required joint and bind it with a ties. This has the advantage of easy reinforcement work, but when the diameter of the reinforcing bar is large, the stress concentration of the reinforcement is not matched by the eccentricity may cause a problem in the structural strength.

Reinforcing bars by pressure point is a method of integrally forming the ends by heating and pressing after the bars and the ends of the reinforcing bars. These pressure point joints typically require work to be performed by skilled workers and are time consuming to connect. In addition, the connection work is excessively expensive, and there are various problems such as a risk of fire due to heating, so it is not easy to apply it.

In order to solve the problems caused by the conventional overlapping joint method and the pressure point joint method as described above, a method of connecting the reinforcing bars mechanically has been proposed. Such mechanical reinforcing bar joints are to be joined using various additional devices such as threaded fasteners formed on the joints. However, when the reinforcing bar is formed by using such an additional device, the structure is complicated and the construction is low, and there is a problem that the reliability of the reinforcing bar is low because the tensile strength in the reinforcing bar is not large.

The present invention has been proposed to solve the problems of the conventional reinforcing bar method or device as described above, while being able to connect the reinforcing bars and rebars mechanically in a simple manner, the reinforcing bars are firmly connected to each other to increase the reliability of the reinforcement In addition, the present invention provides a reinforcing bar device having a simple structure and easy application.

In order to achieve the above object in the present invention as a reinforcing bar connecting the ends of both reinforcing bars to each other, having an inner surface shape corresponding to the outer surface of the end of the both reinforcing bar, the inner side in contact with the outer surface of the reinforcing bar at each end of the rebar Fixing means; It consists of a first divided part and a second divided part which is rotated to open and close each other by a hinge formed on one side, the one side of the hinge is provided with a one-touch clip locking device, the first divided part and the second And an outer pressurizing means having an accommodating space in which the both ends of the reinforcing bars and the respective inner fixing means are held in close contact with their respective ends in the closed state. The external pressing fixing means, the inner locking means and the reinforcing bars by wrapping and pressing the inner fixing means from the outside when the clip locking device is locked with both ends of the reinforcement wrapped by the inner fixing means is located in the receiving space Provided is a mechanical reinforcing bar joint device characterized in that to achieve a joint of both reinforcing bars.

In constructing the reinforcing bar connection device, the one-touch clip locking device is made of a locking protrusion, a hook and a fastener, and the ring may be configured to be pulled and locked when the fastener is pressed while the hook is caught in the locking protrusion.

In addition, in the present invention, the tapered portion is formed on the inner surface of the storage space of the external pressure fixing means to gradually become narrower in the front and rear positions of the internal fixing means so that the internal fixing means does not move in the longitudinal direction. The means may also be configured such that a tapered portion is formed at both ends corresponding to the inner surface of the storage space of the external pressing fixing means.

In the present invention, in the configuration of the reinforcing bar coupling device, the outer surface of the inner fixing means is formed with a shear key protruding in the circumferential direction of the inner fixing means perpendicular to the longitudinal direction of the reinforcing bar, the external pressure fixing A mechanical rebar fitting apparatus is provided on an inner surface of a storage space of the means, wherein a shear key inserting portion into which the shear key is inserted is exerted so as to exert shear resistance by inserting the shear key into the shear key inserting portion.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the reinforcing bar device according to the invention in detail.

Figure 1a is a perspective view illustrating a mechanical rebar joint according to an embodiment of the present invention. FIG. 1B shows a cross section along line A-A in FIG. 1A. As shown in Figure 1a and 1b, the mechanical reinforcing bar (1) according to the present invention, a pair of inner fixing to wrap in contact with the outer surface of the reinforcing bar 2 at each end of the reinforcing bar (2) connected to each other Means 10 and a receiving space is provided so that both ends of the reinforcing bar (2) wrapped by the inner fixing means 10 is located inside the outer fixing means 10 located in the receiving space It is configured to include an external pressing fixing means 20 to be firmly fixed to the end of the reinforcement (2) of both sides by wrapping and pressurizing in.

2A is a perspective view illustrating the inner fixing means 10, and FIG. 2B is a cross-sectional view showing a shape in which the inner fixing means 10 is wrapped in contact with an outer surface of the reinforcing bar 2. As shown in Figure 2a and 2b, the inner fixing means 10 is a member that is installed to wrap in direct contact with the outer surface of the end of the reinforcing bar 2, the inner surface 15 of the outer surface of the reinforcing bar 2 It has a shape corresponding to the shape. As shown in the drawing, the outer surface of the deformed steel bar 2 is formed with a raised surface 2a and a concave surface 2b, and the inner surface of the inner fixing means 10 to correspond to the outer surface shape of the steel bar 2. 15) is formed. Specifically, as shown in FIG. 2A, the inner surface 15 of the inner fixing means 10 includes a recess 15b corresponding to the raised surface 2a of the reinforcing bar 2 and a recessed surface 2b. Corresponding ridges 15b are formed. Therefore, the internal fixing means 10 having the inner surface 15 of such a shape is installed to be in close contact with the outer surface of the connecting end of the reinforcing bar 2 as shown in the figure.

In the embodiment shown in the drawings, the internal fixing means 10 is composed of a pair of members to be installed up and down of the reinforcing bar 2, the internal fixing means 10 may be composed of two or more members. .

On the other hand, as shown in Figure 2a and 2b, the outer surface of the inner fixing means 10, the shear key of the shape protruding in the circumferential direction of the inner fixing means 10 perpendicular to the longitudinal direction of the reinforcing bar (2) 12) may be formed. Although the shear key 12 is illustrated as being formed in a convex shape of a square in the embodiment shown in the figure, the shape is not limited thereto and may be variously changed, and the number may also be provided in one or more. In addition, the shear key 12 may be formed over the entire outer circumferential surface of the inner fixing means 10, or may be formed only on a portion of the outer circumferential surface of the inner fixing means 10 as shown in the drawing. The shear key 12 is inserted into the shear key insertion portion 25 formed on the inner surface of the external pressing fixing means 20 to be described later, thereby functioning to resist the tensile force applied to the reinforcing bar (2).

FIG. 3 is a schematic cross-sectional view of the external pressing fixing means 20, and FIG. 4 is a schematic front view showing a shape in which the external pressing fixing means 20 surrounds the internal fixing means 10. As shown in FIG. Figure 5a is a schematic perspective view showing a one-touch clip locking device provided in the external pressing fixing means 20, Figure 5b is a state in which the internal fixing means 10 is coupled to the outer surface of the reinforcing bar (2) A schematic cross-sectional view showing the state in which the external pressure fixing means 20 is opened and stored in the external pressure fixing means 20 is shown. In FIG. 5C, the external pressure fixing means 20 is closed and locked by the clip locking device. A schematic cross section is shown showing the condition.

As illustrated in FIGS. 3 and 4, the external pressing fixing means 20 simultaneously wraps and pressurizes the internal fixing means 10 installed at both ends of the reinforcing bars 2 connected to each other. Both ends and the inner fixing means 10 of the) serves to maintain the position firmly in the external pressing fixing means (20). To this end, in the present invention, the external pressing fixing means 20 is composed of a first division part 20a and a second division part 20b, and the first division part 20a and the second division part 20b. ) Is configured to rotate and open each other by the hinge portion 21 formed on one side. Both ends of the reinforcing bar 2 and respective internal fixing means are disposed in the external pressing fixing means 20 in a state in which the first and second dividing portions 20a and 20b are closed. Two storage spaces in which the 10 is stored are formed.

The inner surface of the external pressing fixing means 20 has a shape corresponding to the outer surface shape of the inner fixing means 10 to be in close contact with the inner fixing means 10 located in the receiving space. In particular, on the inner surface of the storage space of the external pressure fixing means 20, the taper portion 26 is gradually narrowed at the front and rear positions of the internal fixing means 10 so that the internal fixing means 10 does not move in the longitudinal direction. It is preferably formed. In this case, of course, the internal fixing means 10 also has a tapered portion at both ends thereof.

On the other hand, when the shear key 12 is formed on the outer surface of the internal fixing means 10, as shown in Figure 3 on the inner surface of the storage space of the external pressure fixing means 20, the internal fixing means (10) A shear key insertion portion 25 is formed to engage with the shear key 12 of.

As shown in Figure 5a and 5b, the one-touch clip locking device on the side opposite to the hinge portion 21 provided in the first and second divisions (20a, 20b) of the external pressing fixing means (20) Is provided. In the present invention, the one-touch clip locking device is composed of a locking protrusion 32, a ring 31 and a fastener 35. In the embodiment shown in the figure, the engaging projection 32 is formed in the first division part 20a, and the ring 31 and the second division part 20b as shown in FIG. 5B or 5C. A fastener 35 is provided.

A ring rotating part 31a is formed at one side of the ring 31 of the clip locking device. The ring rotation part 31a is inserted into the rotation hole 33 formed on the side surface of the fastener 35 to form a second hinge axis. Thus, the ring 31 is rotatably connected in the fastener 35. The rotating part 34a formed at the other end of the fastener 35 is connected to the fastener connecting part 34 to form a second rotation axis. The fastener coupling part 34 is connected to the second division part 20b. Accordingly, the fastener 35 may rotate about the first hinge axis in the second division part 20b.

As shown in FIG. 5B, the inner fixing means 10 is installed in close contact with the outer surfaces of both ends of the reinforcing bars 2 to be connected to each other, and then placed in the storage space of the external pressing fixing means 20, and then the hinge part. The 1st division part 20a is closed toward the 2nd division part 20b in the arrow C direction centering on (21). Subsequently, the ring 31 is rotated about the rotary hole 33 to hook the locking protrusion 32, and the fastener 35 is pressed in the direction of the arrow D around the rotary part 34a to wrap the clip locking device. Accordingly, the first division part 20a and the second division part 20b are integrally engaged with each other as shown in FIG. 5C, and as a result, the internal fixing means 10 are strongly pressed to both sides of the reinforcing bar 2. ) Is firmly fixed so that it does not escape or move. Through this process, both reinforcing bars 2 are continuously connected as a result.

 As described above, in the mechanical reinforcing bar joint according to the present invention, it is possible to assemble while strongly pressing the first division part 20a and the second division part 20b of the external pressing fixing means 20. Therefore, the reinforcing bar (2) that is in close contact with the inner fixing means 10 on the outer surface is strongly pressurized and secured, so that the reinforcing bar is made.

Particularly, in the present invention, the first division part 20a of the external pressure fixing means 20 is easily used by using a one-touch clip locking device attached to the external pressure fixing means 20 without using a separate fastening device. And since the second division portion 20b can be strongly pressurized, the reinforcing bar work is simplified, thereby reducing the work time required for the reinforcing bar connection, and consequently economical reinforcing bar can be constructed.

In addition, in the present invention, the tapered portion 26 in the receiving space of the inner surface of the external pressing fixing means 20 gradually narrower at the front and rear ends of the inner fixing means 10 so that the inner fixing means 10 does not move in the longitudinal direction. And a tapered portion is formed at both ends of the internal fixing means 10 correspondingly, so that the inside of the reinforcing bar 2 is held in the state where the external pressing fixing means 20 presses the internal fixing means 10. Since the horizontal movement of the fixing means 10 is completely blocked, even if a strong tensile force or a compressive force acts on both the reinforcing bars 2, the two bars 2 are horizontally moved in the storage space of the external pressing fixing means 20. It is prevented, and as a result, both the reinforcing bar (2) is very firmly followed, the effect that the reliability of the reinforcing bar is significantly improved.

In particular, if the shear key 15 is formed on the outer surface of the internal fixing means 10 and the shear key 15 is inserted into the shear key inserting portion 25 on the inner surface of the receiving space of the external pressure fixing means 20 is further provided. , Shear resistance by the shear key 15 is increased to increase the resistance to tension and compression of both reinforcing bars (2), thereby further improving the reliability of the reinforcing bar.

Claims (4)

As a reinforcing bar (1) connecting the ends of both reinforcing bars (2), Inner fixing means (10) having an inner surface shape corresponding to the outer surface of the end portions of the both reinforcing bars (2) and wrapped in contact with the outer surface of the reinforcing bars (2) at each of the ends of the both bars (2); It is composed of a first divided part 20a and a second divided part 20b which are rotated to be opened and closed by the hinge part 21 formed at one side, and a one-touch clip locking device on the opposite side of the hinge part 21. Is provided, and both ends of each of the reinforcing bars 2 and respective internal fixing means 10 in the longitudinal direction thereof in the state in which the first and second divisions 20a and 20b are closed. It is configured to include an external pressing fixing means 20 is formed in the receiving space is received in close contact with the state; The external pressing fixing means 20, the inner locking means 10 when the clip locking device is locked with both ends of the reinforcing bar (2) wrapped by the inner fixing means 10 located in the storage space Mechanically reinforcing bar joint device, characterized in that to secure the inner fixing means (10) and the reinforcing bars (2) by forming a joint of the two reinforcing bars (2) by wrapping it from the outside. According to claim 1, The one-touch clip locking device is made of a locking projection 32, a ring 31 and a fastener 35, the fastener (in the state in which the hook 31 is caught in the locking projection 32) Mechanical reinforcing bar fittings, characterized in that the ring 31 is pulled and locked when pressing the 35). According to claim 1 or 2, wherein the inner surface of the receiving space of the external pressure fixing means 20 is gradually increased in the front and rear positions of the internal fixing means 10 so that the internal fixing means 10 does not move in the longitudinal direction. The tapered portion 26 is formed to be narrowed, The internal fastening means (10) also mechanical reinforcing bar fittings, characterized in that the tapered portions are formed at both ends corresponding to the inner surface of the storage space of the external pressure fixing means (20). According to claim 1 or 2, wherein the outer surface of the inner fixing means 10 is a shear key 12 protruding in the circumferential direction of the inner fixing means 10 perpendicular to the longitudinal direction of the reinforcing bar (2) Formed, A shear key inserting portion 25 into which the shear key 12 is inserted is formed on an inner surface of the storage space of the external pressurizing means 20, so that the shear key 12 is inserted into the shear key inserting portion 25, thereby reducing the shear resistance. Mechanical rebar fittings, characterized in that to be exercised.

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